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Mar. Drugs 2016, 14(9), 164; doi:10.3390/md14090164

Dichotocejpins A–C: New Diketopiperazines from a Deep-Sea-Derived Fungus Dichotomomyces cejpii FS110

State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China
Guangdong Provincial Key Laboratory of Bioengineering Medicine, National Engineering Research Center of Genetic Medicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Author to whom correspondence should be addressed.
Academic Editor: Sylvia Urban
Received: 3 August 2016 / Revised: 2 September 2016 / Accepted: 5 September 2016 / Published: 9 September 2016
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Three new diketopiperazines, dichotocejpins A–C (13), together with eight known analogues (411), were isolated from the culture of the deep-sea sediment derived fungus Dichotomomyces cejpii FS110. Their structures, including absolute configurations, were elucidated by a combination of HRESIMS, NMR, X-ray crystallography, and ECD calculations. Compounds 46, 1011 showed significant cytotoxic activities against MCF-7, NCI-H460, HepG-2, and SF-268 tumor cell lines. Compound 1 exhibited excellent inhibitory activity against α-glucosidase with an IC50 of 138 μM. View Full-Text
Keywords: diketopiperazines; Dichotomomyces cejpii; deep-sea-derived fungus; cytotoxity; α-glucosidase diketopiperazines; Dichotomomyces cejpii; deep-sea-derived fungus; cytotoxity; α-glucosidase

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Fan, Z.; Sun, Z.-H.; Liu, Z.; Chen, Y.-C.; Liu, H.-X.; Li, H.-H.; Zhang, W.-M. Dichotocejpins A–C: New Diketopiperazines from a Deep-Sea-Derived Fungus Dichotomomyces cejpii FS110. Mar. Drugs 2016, 14, 164.

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